1969cuda
Well-Known Member
Ive got a bone stock 1968 318, with the factory 2bbl intake and carb. Ive added a set headers and I’d like to upgrade to an aluminum intake and 4bbl carb. Any recommendations?
Which aluminum intake and carb to use?
- Thread starter 1969cuda
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383Scampman
Well-Known Member
Can't go wrong with Edelbrock . Inexpensive and available new or used .
Used Edelbrock LD4B (pricey, but worth every penny), Edelbrock AVS2, 650 cfm
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MOPAROFFICIAL
Oogliboogli
600 eddy , Carter 600 afb,Holley 600 dbl pump ...any of those.
Eddy performer or weiand action plus , brand new...or the used vintage ld 4b
Eddy performer or weiand action plus , brand new...or the used vintage ld 4b
1969cuda
Well-Known Member
Thanks for the recommendations, it gives somewhere to start.
gzig5
Well-Known Member
The 625 Street Demon should work pretty well also, and they are a bit less expensive than the Eddy's with an electric choke. I do like what I'm hearing about the AVS2 though. 30+ years ago I put an Edelbrock Performer and Holley 1850 on my 318 and with headers, it really picked up the pace. Definitely want to stay with a dual plane on the street IMHO. I don't know enough about the Wieand intakes to say anything other than a friend ran one on his 360 and liked it.
Garry in AZ
Building a 9 second Valiant
With the 318, you can use virtually any dual plane manifold. The Edelbrock Performer RPM air gap intake is really good, maybe too good for the stock heads and small valve sizes. Find a good used Holley 600 cfm carb.
Don't expect a huge gain though, you can't get really big gains with those stock 318 heads. Your next mod should be a set of 340 or 360 heads and getting rid of those factory low compression dished pistons.
Don't expect a huge gain though, you can't get really big gains with those stock 318 heads. Your next mod should be a set of 340 or 360 heads and getting rid of those factory low compression dished pistons.
Depending on your timeline and budget, as others have suggested, consider a LD4B intake.
Here’s my upgrade thread:
LD4B installation on a 75 318
Here’s my upgrade thread:
LD4B installation on a 75 318
Along with the Ld4b, the AVS2 makes a bolt on and go combination with very little else, a Holley 570 street avenger would work well, too. I like the “as the engine can use it” secondary demand of the AVS. Read up on doing a recurve of your distributor and set your tune up accordingly, you will be very surprised at how well your stock 318 responds.
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1969cuda
Well-Known Member
Great info H22A4, very usefull!
I'm a real fan of the Weiand stealth or action plus intakes. Sorta remind me of the LD4B intakes. A stock cast iron intake is a great intake to run as well.
Mopar-Mitch
Well-Known Member
If buying used I'd stay away from the early eldelbrock torker 340, no low end torque on my engine, I can't wait to switch mine out for a air gap and turn it into a boat anchor!
1969cuda
Well-Known Member
Definitely going to use new components.
j par
Well-hung Member
I'd also recommend this intake manifold I know on my very first 318 I used a Edelbrock 318 streetmaster and it worked pretty well. At the same time I put a 340 grind cam and headers. there's probably a better combination but it's what I used and could find cheap parts at the Swap Meet to do..
mopowers
Well-Known Member
Edelbrock Performer and Holley 1850.
j par
Well-hung Member
Although on the mentioned combination above I did have a holly now that I have a bit more experience with both Holly's and Edelbrock I always highly recommend a 1406 or something Edelbrock. Much more set it and go and less fiddling.
Johnny Dart
Well-Known Member
Edelbrock Performer #2176
Edelbrock Performer 600cfm #1405
Edelbrock Performer 600cfm #1405
Performer and Thermoquad
1969cuda
Well-Known Member
Yeah, no thermoquads.
Remember that you will want to make sure you have the kickdown linkage set up right when you go to a 4bbl and an eddy performer.
OR...
Something like this! ;)
diymirage
HP@idle > hondaHP@redline
but you cant put a blower on that
Now if you could find a pair of 400 AFBs, you could do the dual quad.
Edelbrock Performer and Holley 1850 600 CFM 4 barrel. That's what they were made for. Stock upgrade.
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I'm pretty fucked up right now, and can't remember if this thread is for a 318 or a 360. This is going on my 318 project, bored 0.040 and stroked to 4" to give me a 392 Wedge so I can stomp all over those new chargers and challengers with their 392 HEMI cars.
Going to get a pair of these to go on my offy intake.
The runners are sized for 318 heads, so if I'm gonna port match them to a set of heads to handle the larger displacement I will need to add some material on the outsides of the runners.
Edelbrock 1904 AVS2 Series Dual-Quad Carb, 500 CFM, Manual Choke
Offenhauser 360 Degree Dual-Quad Low-Rise Intake Manifolds 5615
Here's a picture with a 340/360 gasket.
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